Power in = power out, minus a bit

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Posted by chriscase on Friday, November 09, 2007 at 20:26:02 :

In Reply to: OT - Electrical ? on Power Inverters posted by Todd Wilson on Friday, November 09, 2007 at 20:10:17 :

The fan ought to have specs on it. Watts needed on 110 is the same as watts needed on 12v. I would think it would run off a modern charging system....

Batteries are rated in amp/hours. Amps x volts = watts. So, one amp for one hour = 12 watt/hours. 110v fan that draws 5 amps needs 550 watt/hours to run for one hour. Figure from the battery rating how long the fan will run.

Follow Ups:

Re: Power in = power out, minus a bit - Todd Wilson 20:47:13 11/09/2007

That's a different kind of 900 amps - David Sherman 21:25:07 11/09/2007
- Re: That's a different kind of 900 amps - Todd Wilson 23:37:13 11/09/2007
  - Re: That's a different kind of 900 amps - David Sherman 00:42:42 11/10/2007
    - Re: That's a different kind of 900 amps - Mike Tesznar 07:34:17 11/10/2007
      - Re: That's a different kind of 900 amps - David Sherman 12:39:13 11/10/2007

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